EPA-AA-TEB-81-17
Air Quality Analysis for the 1984
High Altitude Report to Congress
Summary of Results
Mark Wolcott
April 1981
Test and Evaluation Branch
Emission Control Technology Division
Office of Mobile Source Air Pollution Control
Environmental Protection Agnecy
-------
-2-
Alr Quality Analysis for the 1984 High Altitude Report to Congress
Summary of Results
This report describes the data, assumptions, and methodology used in the
air quality analysis for the 1984 High Altitude Report to Congress.
Detailed descriptions of the strategies examined and the mobile source
emission factors associated with each strategy are included in this
report only by reference.[1], [2]1
Analytical Overview
Basically, four types of control strategies were considered; these are
illustrated by the diagrams below:
All Altitude Standard
Fixed Point .Standard
g/m
g/m
Low . High
Altitude
Low High
Altitude
Continuously Proportional Standard
Fixed Point, Proportional Standard
g/m
g/m
Low
High
Altitude
Low High
Altitude
These four basic strategies are examined without an inspection and
maintenance (1/M) program, first for only light duty vehicles (LDV) and
second, for light duty vehicles and light duty trucks (LDT) combined.2
Next, these strategies are assumed to include an inspection and
maintenance program. Changes in each of the three major mobile source
pollutants: carbon monoxide (CO), non-methane hydrocarbons (NMHC), and
oxides of nitrogen (NOx), are examined for their ambient air quality
effects in four urban areas: Denver, Colorado Springs, Albuquerque, and
Salt Lake City.
^The list of references cited follows the conclusion of this text.
all altitude strategy is applied only to light duty vehicles.
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-3-
Air Qualify Models
The modified.linear rollback model (ROLLBACK) was used to estimate future
CO and NOx ambient concentrations. In ROLLBACK, a proportional
relationship is assumed to exist between the ambient concentration of a
pollutant at a monitoring site and the total inventory of pollutants
emitted in the vicinity of that site. Thus, if emissions decline over
time, ambient concentrations are assumed to decline in the same
proportion. A detailed description of ROLLBACK is contained in reference
[3].
Ozone predictions are made using the Empirical Kinetic Modeling Approach
(EKMA). EKMA is a slightly more sophisticated model than ROLLBACK for
ozone. EKMA reflects the fact that the relationship between oxidant air
quality and emissions is a complex one involving chemical reactions
between NMHC and NOx emissions in the presence of sunlight. The isopleth
curves shown in Jigure 1 describe the relationship used in EKMA between
the maximum hourly afternoon ozone level and the concentration levels of
the precursors NMHC and NOx. These curves have been calibrated primarily
with smog chamber data.[4]
Inventories
The National Emission Data System (NEDS) provided the basic inventory
estimates for the four urban areas listed in Table l.[5] The base
inventory used in this analysis is for 1978. NEDS provides estimates for
both mobile and stationary emission sources. However, since the highway
mobile source portion of the current (1978) NEDS inventory utilizes
March, 1978 emission factors (MOBILE1), this portion of the inventory was
adjusted for the new emission factors contained in MOBILE2.^[6], [7]
Appendix A contains both sets of emission rates, the resulting adjustment
factor and both the original NEDS inventory based on MOBILE1 and the
inventory used in this analysis based on MOBILE2. Stationary area source
emissions were obtained directly from NEDS.
?or CO and NOx, the total pollutant tonnage emitted within the county
containing these urban areas was used as the base year inventory. For
ozone, the total tonnage emitted within the Air Quality Control Region
(AQCR) was used. A larger geographic area was used to model ozone, since
peak ozone concentrations result from chemical reactions that generally
culminate some distance from the original precursor emissions.
Source Contribution Factors
A source contribution factor is designed to account for stack height and
distance between an emissions source and the ambient monitor. Since
dispersion models have indicated that CO and NOx stationary point source
emissions do not influence the ambient concentration measurements made at
urban monitors, those sources are assigned a stationary source
contribution factor of zero. [8] On the other hand, since CO is
generally considered a short term, local problem, CO stationary area
MOBILE2 was modified slightly for this analysis. See reference [2].
Stationary point source NOx emissions, however, do contribute to the
acid rain problem.
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-4-
sources as well as off-highway mobile sources are assigned source
contribution factors of 0.20; that is, emissions from those sources are
discounted to 20 percent of their actual value. Emissions from highway
mobile sources are not discounted.
The N02 NAAQS is expressed as an annual average, in contrast with CO,
which is expressed as an 8-hour average. The long averaging time for NOx
cancels the effect that the spatial distribution of NOx emission sources
might otherwise have. For this reason, NOx emissions from both
stationary area sources and all mobile sources are fully counted.
Ozone is a secondary pollutant that results from the interaction of NMHC
and NOx in the presence of sunlight. It is generally considered a
regional rather than a local problem. Therefore, all ozone precursor
sources, including stationary point source emissions, are fully counted.
Design Values
Design values are measured ambient air quality concentrations from which
future concentrations are predicted. The data are generally collected by
the states and entered into the Storage and Retrieval of Aerometric Data
(SAROAD) system maintained by EPA. Design values are calculated from
those data in a manner that conforms to the NAAQS for the pollutant and
urban area under study. The design values for CO, for example, are based
upon the second maximum non-overlapping 8-hour concentrations in the
worst year of record. The design values used for NOx are based on the
maximum annual average in the worst year of record, since the N02
standard is expressed as an annual average. The ozone standard, on the
other hand, is expressed as a daily maximum one hour concentration in the
worst year of record. ?or this analysis the worst year of record in the
1977-1979 three year period was used.-'
Background Levels
Natural background ambient pollutant concentrations are the result of
emissions from natural sources, such as decaying vegetation, forest
fires, and lightning. All man-made sources are specifically excluded
from this classification, even if the pollution originates from sources
outside of the study area and is transported into the area by repetitive
weather patterns. Normally, natural background sources of all three
pollutants contribute a negligible amount to the ambient concentrations
measured at urban monitoring sites. In this analysis, natural background
levels were assumed to be zero. This is in keeping with recent EPA
guidance.[9], [10]
^ROLLBACK only requires that ambient pollutant concentrations be known
for the same year that the emissions inventory is estimated. However,
design values are generally estimated from the worst year of record in
the three year period bracketing the base year inventory. This approach
prevents ROLLBACK from underestimating future concentration levels in the
presence of one year of favorable meteorological conditions.
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-5-
Stationary Source Control
Basically, no control was assumed on stationary sources of either CO or
NOx emissions, since emissions from these sources are generally
attributed to space heating devices and the likelihood of controls being
applied to them is low.
NMHC emissions from stationary source, however, do contribute to ozone
formation through a reaction with NOx. New source performance standards
(NSPS) and reasonably available control technologies (RACT) exist for
many NMHC sources.[8] A summary of the control efficiencies assumed for
this analysis is contained in Table 2. Control ranges from zero percent
for miscellaneous area sources and fuel combustion to as high as 90% for
sources in the petroleum industry. The "no control" case is numerically
expressed as a zero efficiency level.
Growth and Retirement Rates
Table 2 also indicates the stationary source growth and retirement rates
assumed. Since area CO and NOx sources are, for the most part, space
heating devices, their usage rate has been assumed to increase at the
population growth rate.
The retirement rate is essentially a scrapage rate, that is, the rate at
which old equipment is retired and replaced by new equipment. For the
purposes of this analysis, a zero retirement is assumed for both CO and
NOx stationary area sources. The growth and retirement rates for NMHC
are also indicated in Table 2.[8]
The mobile source growth rates assumed to apply in this analysis are
listed in Table 3, under the heading "Medium Growth". The heavy duty
gasoline and diesel truck rates and the motorcycle growth rates are
derived directly from the Methodology to Conduct Air Quality
Assesements[8]. The growth rate of non-highway mobile sources is an
approximate average of the rates listed for separate categories in that
publication. The light duty truck and passenger vehicle fleet growth
rates were derived from the data presented in the "Automotive Fuel
Demand" [11] using the methodology presented in the Assessments
reference. The two sets of calculations differ only in that the
Assessments reference imputes an annual growth rate based on the
differences between 1990 versus 1977 vehicles miles traveled (VMT)
estimates, whereas the rates listed in Table 3 are based on 1995 versus
1977 VMT levels. The effect of this change is to lower the annual
compound growth rate.
To provide a range of air quality estimates, two additional sets of
mobile source growth rates were included in the analysis. The "Low
Growth" case is simply one percentage point less than the "Medium Growth"
case for all highway mobile sources. The "High Growth" case is one
percentage point more. Based upon the best available information at this
time, it is likely that future trends in VMT will fall within the
specified ranges. Neither off-highway mobile nor stationary source
growth rates were changed for the alternative cases.
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-6-
Emission Ratios
ROLLBACK uses what are called emission factor ratios to project future
inventories. These ratios are derived by dividing the emission factors
projected for future calendar years by the base year emission factor, in
this case for 1978. This calculation is carried out for each vehicle
category in each projection year. In general, the smaller the numbers,
the greater will be the expected improvement in air quality.
The ratios are presented in Tables 4-8. There are two tables each for CO
and ozone.. One table of each pair assumes that inspection and
maintenance programs are in place by 1982; the other table does not make
that assumption. There is one table for NOx. Tables such as these are
useful because they highlight the mobile source differences among
scenarios. If the fixed point, proportional standard for LDVs is
considered as the basis of comparison in Table 4, for example, the first
four scenarios differ only in the emission factors assumed for light duty
gas vehicles and for diesel vehicles (DV). Indeed, as reference [2]
shows, only the light duty diesel component of DVs differs among the
first four scenarios. Heavy duty diesel emission rates do not change.^
Summary of Results
The region by region air quality projections for each scenario are
presented in Appendices B-F. These appendices display the expected
ambient concentration levels for each city in each projection year. The
expected number of NAAQS violations is also shown. However, when
comparing emission control strategies, it is generally better to focus on
the relative aggregate differences in air quality levels rather than on
the absolute numbers of predicted violations for each urban area.
Table 9 describes the average percent change, from 1978 levels, of the
expected 8-hour average ambient CO concentrations, assuming inspection
and maintenance programs are in place by January 1, 1982. As the table
indicates, if the fixed point statutory standard is promulgated on
schedule and if inspection and maintenance programs are implemented by
1982, then in 1995 the 8-hour average ambient CO concentration levels
will be 71 percent lower than they were in 1978 (medium growth case).
Adopting other than the fixed point, statutory standard will result in a
smaller air quality improvement.
A smaller improvement would also be expected if growth in vehicle miles
traveled is greater than forecast. Under the high growth set of
scenarios, for example, only a 67 percent reduction is expected with the
^Only a few light duty diesels were manufacture red in 1978. By 1995,
approximately 15 percent of total VMT is expected to be accumulated by
light duty diesels. Since ROLLBACK grows base year emissions to estimate
emissions in future years, it was necessary to combine all diesel vehicle
types into one category. The DV emission ratios were adjusted to reflect
this combination of vehicle types. Heavy duty emission rates were not
substituted for light duty rates.
-------
-7-
light duty vehicle fixed point, statutory standard. This contrasts with
the 76 percent reduction achieved if VMT growth is on the low side of the
projected range.
Inspection and maintenance programs also play an important role in these
projections. Without inspection and maintenance (Table 10), the rate of
reduction in ambient CO concentration levels can fall as low as 49
percent. That can make the difference between NAAQS compliance and
non-compliance.
Table 11 describes the average percent change in expected N02
concentrations. Only one table is included for N02, since inspection and
maintenance programs are not currently designed to impact NOx emissions.
Tables 12 and 13 show the expected average percent change in ambient
ozone concentrations, both with and without inspection and maintenance
programs. As in t-he case of CO, the fixed point, statutory standard
tends to show the greatest air quality improvement.
Tables 14-18 have been provided to show the number of areas expected to
exceed the NAAQS in each projection year. These tables should be used
cautiously. A comparison of differences among scenarios is least apt to
be affected by changes in the underlying analytical assumptions.
Statements about the number of violations or the number of urban areas in
non-attainment status as of any particular year can therefore be
misleading.
-------
-8-
References
1. Report to Congress on the Control of Emissions From Light-Duty
Vehicles and Trucks in High-Altitude Areas, U.S. Environmental
Protection Agency, Ann Arbor, Michigan.
2. Wallace, J., "Description of MOBILE2 Runs Performed for the
Congressional High Altitude Report", Memorandum to R. Wilcox, U.S.
Environmental Protection Agency, Ann Arbor, Michigan, April, 1981.
3. N. DeNevers and J.R. Morris, "Rollback Modeling: Basic and Modified",
Journal of the Air Pollution Control Association, 25, 943, September,
1975.
4. M.C. Dodge, "Combined Use of Modeling Techniques and Smog Chamber
Data to Derive Ozone-Precusor Relationships", International
Conference on Photochemical Oxidant Pollution and its Control,
Proceedings: Volume JT^EPA-600/3-77-001b,U.S.Environmental
Protection Agency, Research Triangle Park, North Carolina, January,
1977.
5. AEROS, Volume 11, EPA/450-2-76-029, U.S. Environmental Protection
Agency, Research Triangle Park, North Carolina, 1976.
6. Mobile Source Emission Factors; Final Document, EPA 400/9-78-006,
U.S. Environmental Protection Agency, Washington, D.C. March, 1978.
7. Compilation of Air Pollution Emission Factors; Highway Mobile
Sources, EPA 460/3-81-005, U.S. Environmental Protection Agency, Ann
Arbor, Michigan, March, 1981.
8. Methodology to Conduct Air Quality Assessments of National Mobile
Source Emission Control Strategies, Final Report,EPA-450/4-80-026,
U.S. Environmental Protection Agency, Research Triangle Park, North
Carolina, October, 1980.
9. Air Quality Criteria for Ozone and Other Photochemical Oxidants,
Volume I, EPA 600/8-78-004, U.S. Environmental Protection Agency,
Washington, D.C.
10. Air Quality Criteria for Carbon Monoxide, EPA 600/8-79-022, U.S.
Environmental Protection Agency, Washington, D.C.
11. McNutt, B., Dulla, R. , and Lax, D., "Factors Influencing Automotive
Fuel Demand," SAE Technical Paper Series No. 790226, Congress and
Exposition, Detroit, Michigan, March, 1979.
-------
NCI I HI: 1
0.0
ISOPLETII CURVES FROU'SUOG CII/UIBER EXPERIMENT
Oi ,
.OQ .12 .16 .20 .24 .20
.32 .36
i
VO
I
0.4
0.6
O.Q I.Q 1.2
NMItC ppm C
1.4.
1.6
1.0
2.0
-------
-10-
Table 1
Major High Altitude Urban Areas
Urban Area
County
State
AQCR
1970 Census
Denver
Colorado Springs
Albuquerque
Salt Lake City
Denver
El Paso
Bernalillo
Salt Lake
Colorado
Colorado
New Mexico
Utah
036
038
152
220
1,047,311
204,766
297,451
479,342
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-11-
Table 2
Stationary Source Growth and Retirement Rates
and Control Efficiencies
Pollutant Description
Growth Retirement NSPS RACT
Rate Rate Efficiency Efficiency
(percent) (percent) (percent) (percent)
CO
Area
0.8
0.0
No Control No Control
NMHC Fuel Combustion 3.5
Miscellaneous 0.0
Petroleum Industry 1.9
Petroleum Storage 1.9
and Transport
Industry A
Area Solvent 0.8
Industrial Solvent 3.3
4.3
0.0
4.5
4.5
B
0.0
4.4
No Control
No Control
90
80
65
30
60
No Control
No Control
90*
80*
65*
30*
60*
NOx
Area
0.8
0.0
No Control No Control
where
Principal Source
Denver 3.3
Colorado Springs 2.4
Albuquerque 3.3
Salt Lake City 1.3
4.4
5.0
4.4
4.9
Industrial Processes
Primary Metal Products
Industrial Processes
Mineral Products
*Since Colorado Springs and Albuquerque are both expected to meet the
ozone NAAQS withoug RACT, no RACT control has been assumed for these
areas.
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-12-
Table 3
Fleet Specific Mobile Source Growth Rates
Low Median High
Growth Growth Growth
Light Duty Vehicle Fleet
+0.4
+1.4
+2.4
Light Duty Truck I Fleet
+2.7
+3.7
+4.7
Light Duty Truck II Fleet
+4.8
+5.8
+6.8
Heavy Duty Gasoline Vehicle Fleet -3.0 -2.0
-1.0
Heavy Duty Diesel Vehicle Fleet
+4.0
+5.0
+6.0
Motorcycle Fleet
+1.5
+2.5
+3.5
Off-Highway Vehicles
+2.5
+2.5
+2.5
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-13-
TABLE 4
CARBON MONOXIDE EMISSION FACTOR RATIOS (x100)
WITH INSPECTION AND MAINTENANCE
VEHICLE CLASS
LDV
LDV, LOT
STRATEGY
ALL ALTITUDE
STATUTORY
FIXED POINT
STATUTORY
ALL ALTITUDE
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
FIXED POINT
STATUTORY
ALL ALTITUDE
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
YEAR
LDGV
LDGT
HDGV
DV
^^w~«^ ^
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
*
*
27
27
*
33
26
26
*
*
29
30
39
34
28
29
*
33
26
26
*
*
29
30
*
*
*
*
*
*
*
*
*
*
*
*
#
'*
*
*
33
27
16
14
32
26
14
1 1
#
26
15
13
*
26
15
13
*
*
*
*
*
*
*
*
*
*
*
*
86
72
31
18
*
*
*
*
*
*
*
*
*
*
*
*
*
52
32
25
*
52
32
25
*
*
*
*
58
53
34
29
*
52
31
25
*
*
*
28
*
*
*
28
* INDICATES NO CHANGE FROM THE FIXED POINT, PROPORTIONAL BASE CASE
-------
TABLE 5
OXIDES OF NITROGEN EMISSION FACTOR RATIOS (x100)
WITH INSPECTION AND MAINTENANCE
VEHICLE CLASS
LDV
LDV, LDT
STRATEGY
ALL ALTITUDE,
STATUTORY
FIXED POINT,
STATUTORY
ALL ALTITUDE
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
FIXED POINT
STATUTORY
ALL ALTITUDE,
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
YEAR
LDGV
LDGT
HDGV
DV
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
*
*
77
79
*
*
*
*
*
*
77
79
77
76
76
77
*
*
*
*
*
*
77
79
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
80
74
50
41
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
103
121
79
63
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
55
49
16
9
*
*
*
*
*
*
*
*
*
*
*
*
* INDICATES NO CHANGE FROM THE FIXED POINT, PROPORTIONAL BASE CASE
-------
-o-
TABLE 6
NON-METHANE HYDROCARBON EMISSION FACTOR RATIOS 1x100'
WITH INSPECTION AND MAINTENANCE
VEHICLE CLASS
LDV
STRATEGY
LDV, LOT
ALL ALTITUDE
STATUTORY
FIXED POINT,
STATUTORY
ALL ALTITUDE
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
FIXED POINT
STATUTORY
ALL ALTITUDE,
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
YEAR
LDGV
LDGT
HDGV
DV
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
*
*
*
16
*
*
*
16
*
*
*
*
37
32
19
17
*
*
*
16
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
32
27
14
10
*
26
13
9
*
26
*
*
*
26
*
*
*
*
*
*
*
*
*
*
*
*
*
*
66
55
25
16
*
*
*
*
*
*
*
*
*
*
*
*
*
*
27
21
*
*
27
21
*
*
*
*
58
52
28
22
*
51
26
20
*
*
*
*
*
*
*
*
* INDICATES NO CHANGE FROM THE FIXED POINT, PROPORTIONAL BASE CASE
-------
TABLE 7
CARBON MONOXIDE EMISSION FACTOR RATIOS (x100!
WITHOUT INSPECTION AND MAINTENANCE
VEHICLE CLASS
LDV
LDV, LOT
STRATEGY
ALL ALTITUDE
STATUTORY
FIXED POINT,
STATUTORY
ALL ALTITUDE
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
FIXED POINT
STATUTORY
ALL ALTITUDE,
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
YEAR
LDGV
LDGT
HDGV
DV
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
*
*
*
41
*
*
41
37
*
56
45
44
61
55
43
40
*
*
41
37
*
56
45
44
*
*
*
*
*
*
*
*
*
#
*
*
*
*
*
*
49
44
27
22
*
42
25
19
*
43
26
20
*
43
26
20
*
*
*
*
*
*
*
*
*
*
*
*
86
72
31
18
*
*
*
*
*
*
*
*
*
*
*
*
*
52
32
25
*
52
32
25
*
*
*
*
58
53
34
29
*
52
31
25
*
*
*
28
*
*
*
28
* INDICATES NO CHANGE FROM THE FIXED POINT, PROPORTIONAL BASE CASE
-------
-17-
TABLE 8
NON-METHANE HYDROCARBON EMISSION FACTOR RATIOS (x100
WITHOUT INSPECTION AND MAINTENANCE
VEHICLE CLASS
LDV
STRATEGY
YEAR
LDGV
LDGT
HDGV
DV
LDV, LDT
ALL ALTITUDE,
STATUTORY
FIXED POINT,
STATUTORY
ALL ALTITUDE,
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
FIXED POINT,
STATUTORY
ALL ALTITUDE,
CONTINUOUSLY
PROPORTIONAL
FIXED POINT,
PROPORTIONAL
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
1984
1985
1990
1995
*
*
28
*
*
45
28
*
*
*
*
24
51
46
29
23
*
45
28
*
*
*
*
24
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
43
38
21
15
42
37
20
14
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
66
55
25
16
*
*
*
*
*
*
*
*
*
*
*
*
*
*
27
21
*
*
27
21
*
*
*
*
58
52
28
22
*
51
26
20
*
*
*
*
*
*
*
*
* INDICATES NO CHANGE FROM THE FIXED POINT, PROPORTIONAL BASE CASE
-------
-18-
Table 9
Average Percent Change in Expected 8 Hour Average Ambient CO Concentrations from 1978
Base Year With Inspection and Maintenance
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LOT
Medium LDV
LDV, LOT
High
LDV
LDV, LOT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
-54
-54
-54
-54
-54
-54
-54
-52
-52
-52
-52
-52
-52
-52
-49
-49
-49
-49
-49
-49
-49
-61
-62
-61
-61
-62
-61
-61
-58
-59
-58
-58
-59
-58
-58
-55
-56
-55
-55
-56
-55
-55
-73
-74
-72
-73
-74
-72
-73
-70
-71
-69
-69
-71
-69
-69
-67
-67
-65
-65
-68
-65
-66
-75
-76
-73
-73
-76
-73
-74
-71
-71
-68
-69
-72
-68
-69
-65
-67
-63
-64
-67
-63
-64
-------
-19-
Table 10
Average Percent Change in Expected 8 Hour Average Ambient CO Concentrations from 1978
Base Year Without Inspection and Maintenance
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
tedium LDV
LDV, LDT
iigh
LDV
LDV, LDT
All altitude, statutory
Fixed point-statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point-statutory
All altitude, continuously proportional
Fixed point, proportional
-38
-38
-38
-38
-38
-38
-38
-34
-34
-34
-34
-34
-34
-34
-30
-30
-30
-30
-30
-30
-30
-45
-45
-44
-45
-45
-44
-45
-41
-41
-40
-41
-41
-40
-41
-37
-37
-36
-37
-37
-36
-37
-61
-62
-60
-61
-63
-60
-62
-57
-58
-55
-57
-59
-55
-57
-51
-53
-50
-51
-53
-50
-52
-65
-67
-63
-65
-68
-63
-66
-59
-62
-56
-59
-62
-57
-60
-52
-55
-49
-52
-56
-49
-53
-------
-20-
Table 11
Average Percent Change in Expected N02 Concentrations from 1978 Base Year
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
-1
-1
-1
-1
-1
-1
-1
0
0
0
0
0
0
0
+4
+4
+4
+4
+4
+4
+4
0
0
0
0
0
0
0
+4
+4
+4
+4
+4
+4
+4
+5
+5
+5
+5
+5
+5
+5
«Q
..Q
-9
-9
-9
-9
-9
-5
-5
-5
-5
-5
-5
s
+1
-1
+1
-1
-1
+1
-1
-7
-7
-7
-7
-7
-7
-7
0
-2
0
-2
-2
-2
-2
+6
+6
+6
+6
+6
+6
+6
-------
-21-
Table 12
Average Percent Change in Expected Ambient Oxone Concentrations from 1978 Base Year With
Inspection and Maintenance
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
-19
-19
-19
-19
-19
-19
-19
-18
-18
-18
-18
-18
-18
-18
-17
-17
-17
-17
-17
-17
-17
-21
-21
-21
-21
-21
-21
-21
-20
-20
-20
-20
-20
-20
-20
-19
-19
-19
-19
-19
-19
-19
-26
-26
-26
-26
-26
-26
-26
-25
-25
-25
-25
-25
-25
-25
-23
-23
-23
-23
-24
-23
-23
-25
-25
-25
-25
-26
-25
-25
-23
-23
-23
-23
-24
-23
-23
-22
-22
-21
-21
-22
-21
-21
-------
-22-
Table 13
Average Percent Change in Expected Ambient Oxone Concentrations from 1978 Base Year
Without Inspection and Maintenance
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
-15
-15
-15
-15
-15
-15
-15
-14
-14
-14
-14
-14
-14
-14
-13
-13
-13
-13
-13
-13
-13
-16
-16
-16
-16
-17
-16
-16
-15
-15
-15
-15
-15
-15
-15
-14
-14
-14
-14
-14
-14
-14
-23
-23
-22
-22
-23
-22
-22
-21
-21
-20
-20
-21
-20
-20
-19
-19
-19
-19
-19
-19
-19
-22
-22
-22
-22
-23
-22
-22
-21
-21
-20
-20
-21
-20
-20
-18
-18
-18
-18
-19
-18
-18
-------
-23-
Table 14
Number of Counties with Inspection and Maintenance Expected to Exceed the CO 8 Hour
Average National Ambient Air Quality Standard
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
1
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-------
-24-
Table 15
Number of Counties without Inspection and Maintenance Expected to Exceed the CO 8 Hour
Average National Ambient Air Quality Standard
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LOT
Medium LDV
LDV, LOT
High
LDV
LCV, LOT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
0
0
0
0
0
0
0
2
2
2
2
2
2
2
2
2
2
2
2
2
2
0
0
0
0
0
0
0
1
0
2
I
0
2
0
2
2
2
2
2
2
2
-------
-25-
Table 16
Number of Counties Expected to Exceed the N0_ National Ambient Air Quality Standard
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990 1995
Low
LDV
LDV, LOT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
I
I
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
-------
-26-
Table 17
lumber of Air Quality Control Regions with Inspection and Maintenance Expected to Exceed
:he Ozone National Ambient Air Quality Standard
Jrowth Vehicle
Late Class
Strategy
Projection Year
1984 1985 1990
1995
,ow
LDV
LDV, LDT
tedium LDV
LDV, LDT
ligh
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All Altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-------
-27-
Table 18
Number of Air Quality Control Regions without Inspection and Maintenance Expected to
Exceed the Ozone National Ambient Air Quality Standard
Growth Vehicle
Rate Class
Strategy
Projection Year
1984 1985 1990
1995
Low
LDV
LDV, LDT
Medium LDV
LDV, LDT
High
LDV
LDV, LDT
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
All altitude, statutory
Fixed point; statutory
All altitude, continuously proportional
Fixed point, proportional
Fixed point, statutory
All altitude, continuously proportional
Fixed point, proportional
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
-------
-28-
List of Appendicies
A Base Year Mobile Source Emission Factor Estimates and Emission
Inventory
B CO County Air Quality Projections With Inspection and Maintenance
Programs
C CO County Air Quality Projections Without Inspection and Maintenance
Programs
D N02 County Air Quality Projections
E Ozone Regional Air Quality Projections With Inspection and
Maintenance Programs
F Ozone Regional Air Quality Projections Without Inspection and
Maintenance Programs
-------
-29-
Appendix A
Base Year Mobile Source Emission Factor
Estimates and Emission Inventories
-------
-30-
Table A-l
Inventory Adjustments for 1978 Base Year
LOG
MC
LDV
LDT1 LDG2 LDT
HDG
HDD
MOBILE II NMHC 7.17 13.56 7.241 7.47 11.42 8.89 22.58 8.57
CO 84.28 53.08 83.937 83.46 115.77 95.07 401.65 21.34
NOx 2.19 0.15 2.168 2.35 3.30 2.70 6.63 25.59
Vehicle Mix .785 .009
Weight .989 .011
.083 .047
.638 .362
MOBILE I
NMHC 7.89
CO 80.72
NOx 2.11
8.88 13.35 10.50 41.52 5.95
87.45 121.90 99.92 406.77 48.62
2.03 3.32 2.50 6.86 12.80
Adjustment
Factor* NMHC
CO
NOx
.918
1.040
1.027
.847 .544 1.436
.951 .987 .439
1.080 .966 1.999
*MOBILE II
MOBILE I
-------
-31-
Table A-2
Emissions Inventory
(1000 tons)
LOG LOT HDG HD
CO Denver MOBILE I 387.5 83.3 153.6 18.5
MOBILE II 403.0 79.3 151.6 8.1
Colorado Springs MOBILE I 136.1 29.5 25.1 1.2
MOBILE II 141.5 28.1 24.8 0.5
Alburquerque MOBILE I 127.5 28.0 23.6 7.4
MOBILE II 132.6 26.7 23.3 3.2
Salt Lake City MOBILE I 176.0 37.6 58.8 10.7
MOBILE II 183.0 35.8 58.0 4.7
NMHC Denver MOBILE I 67.4 14.7 21.3 2.9
MOBILE II 61.9 12.5 11.6 4.2
Colorado Springs MOBILE 1 23.2 5.1 4.2 0.3
MOBILE II 21.3 4.3 2.3 0.4
Alburquerque MOBILE I 14.5 3.2 2.2 1.0
MOBILE II 13.3 2.7 1.2 1.4
Salt Lake City MOBILE I 34.1 7.4 9.0 1.8
MOBILE II 31.3 6.3 4.9 2.6
NOx Denver MOBILE 1 10.1 2.3 2.8 5.2
MOBILE II 10.4 2.5 2.7 10.4
Colorado Springs MOBILE I 3.8 0.8 0.5 0.3
MOBILE II 3.9 0.9 0.5 0.6
Alburquerque MOBILE I 3.6 0.8 0.5 2.2
MOBILE II 3.7 0.9 0.5 4.4
Salt Lake City MOBILE I 4.9 1.1 1.1 3=1
MOBILE II 5.0 1.2 1.1 6.2
-------
-32-
Appendix B
CO County Air Quality Projections With
Inspection and Maintenance Programs
-------
-33-
LINEAR ROLLBACK
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: LO
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
O.
0.
0.
CONC
1O.
12.
7.
6.
NUMB
1
5
0
0
-54
2
6
CONC
8.
10.
6.
5.
NUMB
0
1
0
0
-61 .
1
1
CONC
6.
6.
4.
3.
NUMB
0
0
0
0
-73.
0
0
CONC
6.
6.
4.
3.
NUMB
0
0
0
0
-75.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: MD
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
10.
12.
8.
6.
NUMB
2
7
O
O
-52.
2
9
CONC
9.
1 1 .
7.
5.
NUMB
0
2
. 0
0
-58.
1
2
CONC
7.
7.
5.
4.
NUMB
0
0
0
0
-70.
0
0
CONC
7.
7.
5.
4.
NUMB
0
0
0
O
-71 .
0
0
LINEAR ROLLBACK
STRATEGY: SCEN tt\ GROWTH RATE SCENARIO: HI
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
REGION YEAR CONC BKGD
OO1 ALBUQUERQUE 1978 22. 0.
031 DENVER 1978 25. 0.
035 SALT LAKE CITY 1978 16. O.
041 COLO SPRINGS 1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 1O. 1 8. 0 8. 0
13. 1O 11. 4 8. 0 8. 0
8. O 7. 0 5. O 5. O
6. 0 6. 0 4. 0 4. 0
-49.
2
13
-55.
2
5
-67.
0
O
-65.
0
0
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-34-
LINEAR ROLLBACK
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: LO
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
10. 1 8. 0 6. 0 6. 0
12. 5 10. 1 6. O 6. 0
7. 0 6. 0 4. 0 4. 0
6. O 5. O 3. 0 3. O
-54.
2
6
-62.
1
1
-74.
0
0
-76.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN ff2 GROWTH RATE SCENARIO: MD
C08 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
10.
12.
8.
6.
NUMB
2
7
0
O
-52
2
9
CONC
9.
10.
7.
5.
NUMB
0
2
0
0
-59.
1
2
CONC
7.
7.
5.
4 .
NUMB
0
O
0
O
-71 .
0
0
CONC
7.
7.
5.
4 .
NUMB
O
O
0
O
-71 .
O
0
LINEAR ROLLBACK
STRATEGY: SCEN tf2 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
11 .
13.
8.
6.
NUMB
3
10
0
0
-49.
2
13
CONC
9.
1 1 .
7.
5.
NUMB
0
4
0
O
-56.
1
4
CONC
8.
8.
5.
4.
NUMB
O
O
0
O
-67.
0
O
CONC
8.
8.
5.
4.
NUMB
0
O
0
O
-67 .
0
0
-------
-35-
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: LO
C08 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1O. 1 8. 0 6. O 6. 0
12. 5 1O. 1 7. 0 6. 0
7. 0 6. 0 4. O 4. O
6. 0 5. 0 4. 0 3. 0
-54. -61. -72. -73.
2 1 O O
6100
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: MD
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION YEAR
OO1 ALBUQUERQUE 1978
O31 DENVER 1978
035 SALT LAKE CITY 1978
O41 COLO SPRINGS 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
10.
12.
8.
6.
NUMB
2
7
0
O
-52.
2
9
CONC
9.
1 1 .
7.
5.
NUMB
0
2
0
0
-58
1
2
CONC
7 .
8.
5.
4 .
NUMB
0
0
0
0
-69.
0
0
CONC
8.
7 .
5.
4.
NUMB
0
0
0
O
-68.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: HI
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 10. 1 8. O 9. 0
13. 10 11. 4 8. 0 9. 0
8. 0 7. 0 6. 0 6. 0
6. 0 6. 0 4. 0 5. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-49.
2
13
-55.
2
5
-65.
0
O
-63.
O
0
*** NOTE: AIR -QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-36-
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
O01 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
BASE 1984
YEAR CONC BKGO
1978 22. 0.
1978 25. 0.
1978 16. 0. 7.
1978 13. 0. 6.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
10. 1 8. 0 6. 0 6. 0
12. 5 10. 1 6. 0 6. 0
O
0
-54.
2
6
6.
5.
O
0
-61 .
1
1
O
O
-73.
0
O
4 .
3.
0
0
-73.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN //4 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1O. 2 9. 0 7. O 7 . 0
12. 7 11. 2 7. 0 7. 0
8. 0 7. 0 5. O 5. 0
6. 0 5. 0 4. 0 4. 0
-52.
2
9
-58.
1
2
-69.
O
O
-69.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. 0.
1978 16. O.
1978 13. O.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 10. 1 8. 0 9. O
13. 10 11. 4 8. 0 8. 0
8. 0 7. 0 5. 0 6. 0
6. 0 6. O 4. O 5. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-49.
2
13
-55.
2
5
-65.
O
O
-64.
0
O
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-37-
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
001 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
10.
12.
7.
6.
NUMB
1
5
0
0
-54.
2
6
CONC
8.
10.
6.
5.
NUMB
0
1
0
O
-62
1
1
CONC
6.
6.
4.
3.
NUMB
0
O
0
0
-74.
0
O
CONC
6.
5.
4.
3.
NUMB
0
0
0
O
-76.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
10.
12.
8.
6.
NUMB
2
7
0
0
-52.
2
9
CONC
9.
10.
7.
5.
NUMB
O
2
0
0
-59
1
2
CONC
7.
7 .
5.
4.
NUMB
O
0
0
0
-71 .
0
0
CONC
7.
6.
4.
3.
NUMB
0
O
0
0
-72.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 9. 0 7. 0 8. 0
13. 9 11. 3 8. O 8. 0
8. 0 7. O 5. 0 5. 0
6. 0 5. 0 4. 0 4. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-49.
2
12
-56.
1
3
-68.
0
O
-67.
O
O
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-38-
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
O.
0.
CONC
10.
12.
7 .
6.
NUMB
1
5
0
0
-54.
2
6
CONC
8.
10.
6.
5.
NUMB
0
1
0
0
-61
1
1
CONC
6.
7 .
4.
4 .
NUMB
0
0
0
0
-72.
0
0
CONC
6.
6.
4 .
3.
NUMB
O
O
0
0
-73.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. O.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
10. 2 9. 0 7. 0 8. 0
12. 7 10. 2 7. 0 7. 0
8. 0 7. 0 5. 0 5. O
6. O 5. O 4. 0 4. O
-52.
2
9
-58.
1
2
-69.
0
O
-68.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. O.
1978 16. 0.
1978 13. O.
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 10. 1 8. O 9. 0
13. 1O 11. 4 8. O 9. O
8. 0 7. 0 6. 0 6. 0
6. O 6. O 4. O 5. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-49.
2
13
-55.
2
5
-65.
O
0
-63.
O
0
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-39-
LINEAR ROLLBACK
STRATEGY: SCEN #7 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONG
22.
25.
16.
13.
BKGD
O.
O.
O.
O.
CONC
10.
12.
7.
6.
NUMB
1
5
0
O
-54.
2
6
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
8. O 6. O 6. O
10. 1 6. 0 6. 0
6. 0 4. 0 4. 0
5. O 3. O 3. 0
-61 .
1
1
-73.
O
0
-74.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #7 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
O.
0.
CONC
10.
12.
8.
6.
NUMB
2
7
0
0
-52.
2
9
CONC
9.
1O.
7.
5.
NUMB
O
2
0
0
-58
1
2
CONC
7.
7.
5.
4.
NUMB
O
0
O
0
-69.
O
O
CONC
7.
7.
5.
4.
NUMB
0
0
O
0
-69.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN #7 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. O.
1978 16. O.
1978 13. O.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
11. 3 10. 1 8. O 8. 0
13. 10 11. 4 8. O 8. 0
8. 0 7. O 5. O 6. 0
6. 0 6. 0 4. 0 5. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-49.
2
13
-55.
2
5
-66.
0
0
-64.
0
0
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-40-
Appendlx C
CO County Air Quality Projections Without
Inspection and Maintenance Programs
-------
-41-
LINEAR ROLLBACK
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: LO
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. O.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14.12 12. 7 9. O 8. O
15. 21 14. 12 9. O 8. 0
10. 1 9. 0 6. 0 5. 0
8. 0 7. 0 5. 0 5. 0
-38.
3
34
-45.
2
19
-61 .
0
O
-65.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN H\ GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
001 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
O.
CONC
14.
16.
1O.
8.
NUMB
16
26
2
0
-34.
3
44
CONC
13.
14.
9.
8.
NUMB
9
16
0
O
-41 .
2
25
CONC
1O.
1O.
7.
6.
NUMB
1
2
0
O
-57
2
3
CONC
1O.
9.
6.
5.
NUMB
1
0
0
O
-59.
1
1
LINEAR ROLLBACK
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. O.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 20 14. 13 11. 3 11. 4
17. 33 16. 22 11. 4 11. 4
11. 3 10. 1 8. O 8. 0
9. 0 8. 0 6. O 6. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-3O.
3
56
-37.
3
36
-51 .
2
7
-52.
2
8
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-42-
LINEAR ROLLBACK
STRATEGY: SCEN HZ GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE
TOTAL NO. OF EXC
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
14.
15.
10.
8.
NUMB
12
21
1
0
-38.
3
34
CONC
12.
14.
9.
7.
NUMB
7
12
O
0
-45.
2
19
199O
1995
9. 0 8. 0
0 8. O
0 5. 0
9.
6.
5.
-62.
0
0
8.
5.
4.
-67.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: MD
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.0O PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION YEAR
001 ALBUQUERQUE 1978
O31 DENVER 1978
O35 SALT LAKE CITY 1978
041 COLO SPRINGS 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
14.
16.
10.
8.
NUMB
16
26
2
0
-34.
3
44
CCNC
13.
14 .
9.
8.
NUMB
9
16
0
0
-41 .
2
25
CONC
10.
10.
7.
5.
NUMB
1
1
O
0
-58
2
2
CONC
9.
9.
6.
5.
NUMB
0
O
0
O
-62.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. O.
1978 16. 0.
1978 13. O.
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 20 14. 13 11. 3 1O. 2
17. 33 16. 22 11. 3 10. 2
11. 3 10. 1 7. 0 7. O
9. 0 8. 0 6. 0 6. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-30.
3
56
-37.
3
36
-53.
-55.
2
4
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-43-
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.0O PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. 0.
1978 16. O.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 12 12. 7 9. O 9. 0
15. 21 14. 12 9. 0 8. O
10. 1 9. O 6. O 6. O
8. 0 7. 0 5. O 5. 0
-38.
3
34
-44.
2
19
-6O.
0
0
-63.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN f/3 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.0O PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 16 13. 10 10. 2 10. 2
16. 26 15. 17 10. 2 10. 1
10. 2 9. 0 7. 0 7. 0
8. 0 8. O 6. O 6. 0
-34.
3
44
-40.
2'
27
-55.
2
4
-56.
2
3
LINEAR ROLLBACK
STRATEGY: SCEN H3 GROWTH RATE SCENARIO: HI
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.CO PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. O.
1978 16. O.
1978 13. 0.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 2O 14. 14 11. 4 12. 6
17. 33 16. 23 12. 5 12. 6
11. 3 1O. 1 8. 0 8. O
9. 0 8. O 7. 0 7. 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-30.
3
56
-36.
3
38
-50.
2
9
-49.
2
12
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-44-
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: LO
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
REGION YEAR
001 ALBUQUERQUE 1978
031 DENVER 1978
035 SALT LAKE CITY 1978
O41 COLO SPRINGS 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC
22.
25.
16.
13.
BKGD
0.
0.
O.
O.
CONC
14.
15.
10.
8.
NUMB
12
21
1
O
-38.
3
34
CONC
12.
14.
9.
7.
NUMB
7
12
0
O
-45.
2
19
1990
1995
9. 0 8. 0
9. 0 8. 0
0 5. 0
6.
5.
-61 .
0
0
5.
4.
-65.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONG BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 16 13. 10 10. 1 10. 1
16. 26 14. 16 10. 2 9. 0
1O. 2 9. 0 7. 0 6. O
8. 0 8. 0 6. O 5. O
-34.
3
44
-41 .
2
26
-57.
2
3
-59.
1
1
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. 0.
1978 16. 0.
1978 13. 0.
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 20 14. 13 11. 3 11. 4
17. 33 16. 22 11. 4 11. 3
11. 3 10. 1 8. 0 8. 0
9. 0 8. O 6. O 6. O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-30.
3
56
-37.
3
36
-51 .
2
7
-52.
2
7
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-45-
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS /
TOTAL NO. OF EXC
(STANDARD IS 9.OO PPM)
PROJECTS
B
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
A S E
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
1984
CONC
14.
15.
10.
8.
NUMB
12
21
1
0
-38.
3
34
D
1985
CONC
12.
13.
9.
7.
NUMB
6
11
0
0
-45.
2
17
1990
CONC
8.
9.
6.
5.
NUMB
0
0
0
0
-63.
O
O
1995
CONC
8.
7.
5.
4 .
NUMB
0
0
0
0
-68.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. O.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 16 13. .9 9. O 9. 0
16. 26 14. 16 1O. 1 9. O
10. 2 9. 0 6. 0 6. 0
8. 0 8. 0 5. 0 5. 0
-34.
3
44
-41 .
2
25
-59.
1
1
-62.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
BASE
REGION YEAR CONC BKGD
001 ALBUQUERQUE 1978 22. 0.
031 DENVER 1978 25. O.
035 SALT LAKE CITY 1978 16. O.
041 COLO SPRINGS 1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 20 14. 13 11. 2 10. 2
17. 33 15. 21 11. 3 1O. 2
11. 3 1O. 1 7. 0 7. O
9. 0 8. 0 6. 0 6. 0
-30.
3
56
-37.
3
35
-53.
2
5
-56.
2
4
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-46-
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: LO
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. O.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 12 12. 7 9. O 9. 0
15. 21 14. 12 9. 0 8. 0
10.
8.
1
0
-38.
3
34
9.
7.
O
0
-44.
2
19
6.
5.
0
0
-60.
0
0
6.
5.
0
0
-63.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 16 13. 10 1O. 2 10. 1
16. 26 15. 17 10. 2 1O. 1
10. 2 9. 0 7. 0 7. 0
8. O 8. 0 6. O 6. 0
-34.
3
44
-40.
2
27
-55.
2
4
-57.
2
2
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
REGION YEAR CONC BKGD
001 ALBUQUERQUE 1978 22. 0.
031 DENVER 1978 25. O.
035 SALT LAKE CITY 1978 16. 0.
041 COLO SPRINGS 1978 13. 0.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 20 14. 14 11. 4 12. 5
17. 33 16. 23 12. 5 12. 5
11. 3 10. 1 8. 0 8. 0
9. 0 8. 0 6. O 7. 0
-30.
3
56
-36.
3
38
-50.
2
9
-49.
2
10
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-47-
LINEAR ROLLBACK
STRATEGY: SCEN 07 GROWTH RATE SCENARIO: LO
COB AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
BASE
1984
1985
1990
1995
001
031
035
041
REGION YEAR
ALBUQUERQUE 1978
DENVER 1978
SALT LAKE CITY 1978
COLO SPRINGS 1978
CONC
22.
25.
16.
13.
BKGD
0.
0.
0.
0.
CONC
14.
15.
1O.
8.
AVERAGE PERCENT CHANGE
NO.
OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
NUMB
12
21
1
0
-38.
3
34
CONC
12.
13.
9.
7.
NUMB
7
11
0
0
-45.
2
18
CONC
9.
9.
6.
5.
NUMB
0
0
0
0
-62.
O
0
CONC
8.
8.
5.
4.
NUMB
0
0
0
0
-66.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN 07 GROWTH RATE SCENARIO: MD
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.OO PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. 0.
1978 25. 0.
1978 16. 0.
1978 13. O.
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
14. 16 13. 9 10. 1 9. 0
16. 26 14. 16 10. 2 9. 0
10. 2 9. 0 7. 0 6. 0
8. O 8. 0 6. O 5. 0
-34.
3
44
-41 .
2
25
-57.
2
3
-60.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN HI GROWTH RATE SCENARIO: HI
COS AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS 9.00 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 22. O.
1978 25. 0.
1978 16. 0.
1978 13. 0.
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
15. 2O 14. 13 11. 3 11. 3
17. 33 15. 21 11. 4 11. 3
11. 3 1O. 1 8. 0 7. 0
9. O 8. 0 6. O 6. O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-3O.
3
56
-37.
3
35
-52.
2
7
-53.
2
6
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-48-
Appendix D
N02 County Air Quality Projections
-------
-49-
LINEAR ROLLBACK
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
001
031
035
041
REGION
ALBUQUERQUE
DENVER
SALT LAKE CITY
COLO .SPRINGS
YEAR
1978
1978
1978
1978
CONC
.02
.05
.04
.03
BKGD
.000
.OOO
.000
.OOO
CONC
.02
.05
.04
.02
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
0 .02 0 .02 O .02 0
0
0
O
1 .
0
0
.05
.04
.02
0
0
O
-0.
0
0
.05
.04
.02
0
0
0
-9.
0
0
.05
.04
.02
O
0
0
-7.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN It 1 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .OOO
1978 .04 .000
1978 .03 .000
1984
1985
1990
1995
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 0 .02 0
.06 1 .06 1 .05 O .05 0
.04 0 .04
.02 0 .03
0.
1
1
0
0
4.
1
1
.04
.02
0
0
-5.
0
O
.04
.03
0
O
-o.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN tt 1 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
REGION YEAR CONC BKGD
OO1 ALBUQUERQUE 1978 .02 .000
O31 DENVER 1978 .OS .OOO
035 SALT LAKE CITY 1978 .04 .000
041 COLO SPRINGS 1978 .03 .OOO
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 O .02 0 .02 0
.06 1 .06 1 .05 O .06 1
.04 0 .04 0 .04 0 .04 0
.03 0 .03 0 .03 0 .03 0
4.
1
1
1 .
0
0
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-50-
LINEAR ROLLBACK
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
001
031
035
041
REGION
ALBUQUERQUE
DENVER
SALT LAKE CITY
COLO SPRINGS
YEAR
1978
1978
1978
1978
CONC
.02
.05
.04
.03
BKGD
.OOO
.000
.OOO
.OOO
CONC
.02
.05
.04
.02
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
O .02 0 .02 O .02 0
.05
.04
.02
0
O
0
-1 .
0
0
.05
.04
.02
O
0
0
-0.
0
0
.05
.04
.02
O
O
0
-9.
O
0
.05
.04
.02
0
O
0
-7.
O
0
LINEAR ROLLBACK
STRATEGY: SCEN H2 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
.02
.05
.04
.03
BKGD
.000
.000
.000
.000
CONC
.02
.06
.04
.02
NUMB
0
1
0
0
0
1
1
CONC
.02
.06
.04
.03
NUMB
0
1
0
O
4.
1
1
CONC
.02
.05
.04
.02
NUMB
O
O
0
O
-5.
0
0
CONC
.02
.05
.04
.03
NUMB
0
0
0
O
-2.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN tfi GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .OOO
1978 .04 .OOO
1978 .03 .000
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 0 .02 0
.06 1 .06 1 .05 0 .06 1
.04 O .04 O .04 O .04 0
.03 0 .03 0 .03 0 .03 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
4.
1
1
5.
1
1
- 1 .
O
O
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-51-
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .000
1978 .04 .OOO
1978 .03 .OOO
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 0 .02 0 .02 O
.05 0 .05 0 .05 0 .05 0
.04 O .04 O .04 O .04 0
.02 0 .02 0 .02 0 .02 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1 .
0
0
-0.
0
0
-9.
0
0
-7.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .OOO
1978 .05 .000
1978 .04 .000
1978 .03 .OOO
1984
1985
199O
1995
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 O .02 0 .02 0
.06 1 .06 1 .05 0 .05 0
.04 O .04
.02 0 .03
0.
1
1
O
O
4.
1
1
.04
.02
0
O
-5.
0
0
.04
.03
O
0
-0.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN H3 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .OOO
1978 .05 .000
1978 .04 .OOO
1978 .03 .OOO
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 O .02 0 .02 O
.06 1 .06 1 .05 0 .06 1
.04 0 .04 O .04 O .04 O
.03 0 .03 0 .03 O .03 O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
4.
1
1
5.
1
1
1 .
0
0
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-52-
LINEAR ROLLBACK
STRATEGY: SCEN 04 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
YEAR CONC BKGD
1978 .02 .000
1978 .05 .OOO
1978 .04 .OOO
1978 .03 .000
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 0 .02 O
.05 O .05 O .05 0 .05 O
.04
.02
0
0
1 .
O
0
.04
.02
0
0
-0.
0
0
.04
.02
0
0
-9.
0
0
.04
.02
0
0
-7.
O
0
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .OOO
1978 .05 .000
1978 .04 .000
1978 .03 .000
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 O .02 O .02 O
.06 1 .06 1 .05 0 .05 0
.04 0 .04 0 .04 O .04 0
.02 O .03 0 .02 0 .03 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
0.
1
1
4 .
1
1
-5.
0
O
-2.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .OS .OOO
1978 .04 .OOO
1978 .03 .OOO
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 0 .02 O .02 0
.06 1 .06 1 .05 0 .06 1
.04 O .04 O .04 0 .04 0
.03 0 .03 0 .03 0 .03 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
4.
1
1
5.
1
1
-1 .
0
0
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-53-
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .OS PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
YEAR CONC BKGD
1978 .02 .000
1978 .05 .OOO
1978 .04 .OOO
1978 .03 .OOO
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 O .02 0
.05 0 .05 0 .05 0 .05 0
.04
.02
O
0
1 .
0
0
.04
.02
O
O
-o.
0
0
.04
.02
0
0
Q
0
0
.04
.02
0
O
-7.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
'E STD
lANCES
CONC
.02
.05
.04
.03
BKGD
.OOO
.000
.000
.000
CONC
.02
.06
.04
.02
NUMB
0
1
0
0
0.
1
1
CONC
.02
.06
.04
.03
0 .02 0 .02 0
1 .05 0 .05 0
O .04 0 .04 0
O .02 O .03 O
4.
1
1
-5.
0
0
-2.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
O35 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .000
1978 .04 .OOO
1978 .03 .OOO
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 O .02 0
.06 1 .06 1 .05 0 .06 1
.04 0 .04 0 .04 0 .04 0
.03 0 .03 0 .03 0 .03 O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
4.
1
1
5.
1
1
- 1 .
0
0
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-54-
LINEAR ROLLBACK
STRATEGY: SCEN /C6 GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
AVERAGE PERCENT CHANGE
NO. OF REGIONS /
TOTAL NO. OF EXCEEDANCES
YEAR
1978
1978
1978
1978
NGE
E STD
ANCES
CONC
.02
.05
.04
.03
BKGD
.OOO
.000
.000
.OOO
CONC
.02
.05
.04
.02
NUMB
0
0
0
O
-1 .
0
0
CONC
.02
.05
.04
.02
NUMB
0
0
O
O
-0.
0
0
CONC
.02
.05
.04
.02
NUMB
0
0
O
O
-9.
0
O
CONC
.02
.05
.04
.02
NUMB
0
0
0
O
-7.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
O01 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .000
1978 .04 .000
1978 .03 .OOO
1984
1985
1990
1995
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 O .02 O .02 0
.06 1 .06 1 .05 O .05 0
.04 0 .04
.02 0 .03
0.
1
1
0
O
4 .
1
1
.04
.02
O
0
-5.
O
0
.04
.03
0
O
-2.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
O31 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .000
1978 .04 .000
1978 .03 .OOO
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 0 .02 0 .02 0
.06 1 .06 1 .05 O .06 1
.04 0 .04 0 .04 O .04 0
.03 0 .03 0 .03 0 .03 0
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
4.
5.
1
1
1 .
0
0
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-55-
LINEAR ROLLBACK
STRATEGY: SCEN HI GROWTH RATE SCENARIO: LO
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
001 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
O41 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .000
1978 .05 .OOO
1978 .04 .000
1978 .03 .OOO
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
1984
1985
199O
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 0 .02 0 .02 0 .02 0
.05
.04
.02
0
0
0
1 .
0
0
.05
.04
.02
O
0
0
-O.
0
0
.05
.04
.02
0
0
0
-9.
0
0
.05
.04
.02
0
O
0
-7.
0
O
LINEAR ROLLBACK
STRATEGY: SCEN HI GROWTH RATE SCENARIO: MD
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION YEAR
001 ALBUQUERQUE 1978
O31 DENVER 1978
035 SALT LAKE CITY 1978
041 COLO SPRINGS 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
CONC
.02
.05
.04
.03
BKGD
.OOO
.OOO
.000
.OOO
CONC
.02
.06
.04
.02
NUMB
O
1
0
0
0
1
1
CONC
.02
.06
.04
.03
O .02 0 .02 0
1 .05 O .05 0
0 .04 0 .04 0
0 .02 0 .03 0
4.
-5.
O
0
-2.
0
0
LINEAR ROLLBACK
STRATEGY: SCEN #7 GROWTH RATE SCENARIO: HI
N02 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .05 PPM)
PROJECTED
REGION
OO1 ALBUQUERQUE
031 DENVER
035 SALT LAKE CITY
041 COLO SPRINGS
BASE
YEAR CONC BKGD
1978 .02 .OOO
1978 .05 .000
1978 .04 .OOO
1978 .03 .000
1984
1985
1990
1995
CONC NUMB CONC NUMB CONC NUMB CONC NUMB
.02 O .02 0 ,O2 0 .02 O
.06 1 .06 1 .05 O .06 1
.04 0 .04 O .04 O .04 O
.03 0 .03 0 .03 O .03 O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
5.
1
1
-1 .
0
O
6.
1
1
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
.THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-56-
Appendix E
Ozone Regional Air Quality Projections With
Inspection and Maintenance Programs
-------
-57-
E K M A
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONG NUMB CONC NUMB
1978 .16 9.50 .12 O .12 0 .11 O .11 O
1978 .09 9.5O .07 0 .07 0 .07 0 .07 O
1978 .13 9.50 .11 0 .11 O .11 O .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 14
-19.
. 14
-21 .
1
2
. 13
1
-26.
1
1
. 13
1
-25.
1
1
E K M A
STRATEGY: SCEN *1 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
O38 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .11 0 .11 0
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 O .11 O .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
18.
2
3
. 14
-20.
1
2
. 13
1
-25.
1
1
. 14
-23.
1
2
E K M A
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
O38 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .12 O .12 0
1978 .09 9.50 .08 O .07 0 .07 0 .07 O
1978 .13 9.50 .11 0 .11 O .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.SO
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
17.
2
4
14
-19.
1
2
13
1
14
-22.
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-58-
E K M A
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .16 9.50 .12 0 .12
1978 .13 9.50 .11 0 .11
22O SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
. 14
19.
1
2
o
0
2
-21 .
1
2
. 1 1
. 11
. 13
0
0
1
-26.
1
1
. 1 1
. 1 1
. 13
O
0
1
-25.
1
1
E K M A
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: MO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
036 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
.09
. 13
. 18
9
9
9
9
50
.50
50
.50
. 13
.07
. 11
. 14
1
0
0
2
-18.
2
3
. 12
.07
. 11
. 14
0
0
0
2
-20.
1
2
. 1 1
.07
. 11
. 13
O
0
0
1
-25.
1
1
. 1 1
.07
. 1 1
. 14
0
0
0
2
-23.
1
2
E K M A
STRATEGY: SCEN H2 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION YEAR CONC
O36 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
.09
. 13
. 18
RATIO
9.
9
9
9
. 5O
50
.50
.50
CONC
. 13
.08
. 11
. 14
NUMB CONC
1
0
0
3
-17.
2
4
. 12
.07
. 1 1
. 14
NUMB CONC
O
0
0
2
-19.
1
2
. 12
.07
. 11
. 13
NUMB CONC
O
O
0
1
-23.
1
1
. 12
.07
. 11
. 14
NUMB
0
O
0
2
-22.
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-59-
E K M A
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .07 O .07 0 .07 0 .07 0
1978 .16 9.50 .12 0 .12 0 .11 O .11 O
1978 .13 9.50 .11 0 .11 0 .11 0 .11 O
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
18 9.50
. 14
19.
1
2
. 14
-21 .
1
2
. 13
1
-26.
1
1
. 13
1
-25.
1
1
E K M A
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
036 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
.09
. 13
. 18
9
9
9
9
.50
.50
.50
. 5O
. 13
.07
. 1 1
. 14
1
0
0
2
-18.
2
3
. 12
.07
. 1 1
. 14
0
0
0
2
-20.
1
2
. 1 1
.07
. 11
. 13
0
0
0
1
-25.
1
1
. 12
.07
. 11
. 14
0
0
0
2
-23.
1
2
E K M A
STRATEGY: SCEN 03 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 O .12 0 .12 0
1978 .09 9.50 .08 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 0 .11 0 .11 O .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
17.
2
4
14
-19.
1
2
14
-23.
1
2
14
-21 .
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-60-
E K M A
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: 10
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
O36 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONG NUMB CONG NUMB
1978 .16 9.50 .12 O .12 O .11 0 .11 0
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 0 .11 O .11 O .11 O
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
18 9.50
14
. 14
. 13
1
19.
1
2
-21 .
1
2
. 13
1
-25.
1
1
E K M A
STRATEGY: SCEN /C4 GROWTH RATE SCENARIO: MO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .11 O .12 0
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 0 .11 0 .11 O .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
. 14
. 13
1
18.
2
3
-20.
1
2
-25.
1
1
. 14
-23.
1
2
E K M A
STRATEGY: SCEN 04 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .12 0 .12 O
1978 .09 9.50 .08 0 .07 O .07 O .07 0
1978 .13 9.50 .11 0 .11 0 .11 O .11 0
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
14
14
14
17.
2
4
-19.
1
2
-23.
1
2
-21 .
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-61-
E K M A
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION YEAR CONC
038 COLO SPRINGS 1978
O36 DENVER 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
.09
. 16
. 13
. 18
RATIO
9
9
9
9
.50
.50
.50
.50
CONC
.07
. 12
. 1 1
. 14
NUMB CONC
0
0
0
2
-19.
1
2
.07
. 12
. 11
. 14
NUMB CONC
0
O
0
2
-21 .
1
2
.07
. 1 1
. 10
. 13
NUMB CONC
0
0
0
1
-26.
1
1
.07
. 11
. 1 1
. 13
NUMB
0
O
0
1
-26.
1
1
E K M A
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS - 12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
O36 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .16 9.50 .13 1 .12 O .11 0 .11 O
1978 .13 9.50 .11 0 .11 O .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 14
18.
2
3
. 14
-20.
1
2
. 13
1
-25.
1
1
14
-24.
1
2
E K M A
STRATEGY: SCEN f/5 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
220 SALT LAKE CITY
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .11 0 .12 0
1978 .09 9.50 .08 O .07 O .07 0 .07 O
1978 .13 9.50 .11 0 .11 0 .11 0 .11 0
1978 .18 9.50 .14 3 .14 2 .13 1 .14 2
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-17.
2
4
-19.
1
2
-24.
1
1
-22.
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-62-
E K M A
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .16 9.50 .12 0 .12 0 .11 O .11 0
1978 .13 9.50 .11 0 .11 0 .11 O .11 0
22O SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 14
19.
1
2
. 14
-21 .
1
2
. 1 1
. 13
1
-26.
1
1
. 13
1
-25.
1
1
E K M A
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
O36 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
.09
. 13
. 18
9
9
9
9
.50
.50
.50
. 5O
. 13
.07
. 1 1
. 14
1
0
0
2
-18.
2
3
. 12
.07
. 1 1
. 14
0
0
0
2
-20.
1
2
. 1 1
.07
. 11
. 13
0
0
0
1
-25.
1
1
. 12
.07
. 1 1
. 14
0
O
0
2
-23.
1
2
E K M A
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
O36 DENVER
O38 COLO SPRINGS
152 ALBUQUERQUE
22O SALT LAKE CITY
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.SO .13 1 .12 0 .12 0 .12 0
1978 .09 9.5O .08 O .07 0 .07 O .07 0
1978 .13 9.50 .11 0 .11 0 .11 0 .11 0
1978 .189.SO .14 3 .14 2 .14 2 .14 2
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
17.
2
4
-19.
1
2
-23.
1
2
-21 .
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-63-
E K M A
STRATEGY: SCEN HI GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .12 0 .12 0 .11 0 .11 0
1978 .09 9.50 .07 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 0 .11 O .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 14
. 14
. 13
1
19.
1
2
-21 .
1
2
. 13
1
-25.
1
1
E K M A
STRATEGY: SCEN in GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .07 O .07 O .07 0 .07 0
1978 .16 9.50 .13 1 .12 0 .11 0 .12 0
1978 .13 9.50 .11 0 .11 0 .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 14
. 14
13
18.
2
3
-20.
1
2
1
-25.
1
1
. 14
-23.
1
2
E K M A
STRATEGY: SCEN HI GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .12 0 .12 0 .12 0
1978 .09 9.50 .08 0 .07 0 .07 0 .07 0
1978 .13 9.50 .11 0 .11 0 .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
14
. 14
14
14
-17.
2
4
-19.
-23.
1
2
-21 .
1
2
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-64-
Appendix F
Ozone Regional Air Quality Projections Without
Inspection and Maintetnance Programs
-------
-65-
E K M A
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
036 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
22O SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
.16
.09
.13
. 18
9
9
9
9
.50
.50
.50
.50
. 13
.08
. 12
. 15
1
O
0
3
-15.
2
4
. 13
.08
. 12
. 15
1
O
0
3
-16.
2
4
. 12
.07
. 11
. 14
0
0
0
2
-23.
1
2
. 12
.07
. 11
. 14
0
0
0
2
-22.
1
2
E K M A
STRATEGY: SCEN H\ GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .13 9.50 .12 0 .12 0 .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
14.
2
5
-15.
2
4
-21 .
1
2
. 14
-21 .
1
2
E K M A
STRATEGY: SCEN #1 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
22O SALT LAKE CITY
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .09 9.50 .08 O .08 0 .07 0 .07 0
1978 .13 9.50 .12 O .12 0 .11 0 .11 0
1978 .18 9.50 .15 4 .15 4 .14 2 .15 3
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
13.
2
5
-14.
2
5
-19.
1
2
-18.
1
3
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-66-
E K M A
STRATEGY: SCEN #2 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .08 0 .08 0 .07 O .07 0
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .13 9.5O .12 0 .12 0 .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.50 .15 3 .15 3 .14 2 .14 2
AVERAGE PERCENT CHANGE -15. -16. -23. -22.
NO. OF REGIONS ABOVE STD 2211
TOTAL NO. OF EXCEEDANCES 4422
E K M A
STRATEGY: SCEN H2 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .09 9.50 .08 0 .08 0 .07 O .07 0
1978 .13 9.50 .12 0 .12 0 .11 0 .11 0
22O SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
14
14.
2
5
-15.
2
4
-21 .
1
2
. 14
-21 .
1
2
E K M A
STRATEGY: SCEN t>2 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
O36 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 O
1978 .13 9.5O .12 0 .12 O .11 O .11 0
220 SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
15
. 15
. 14
15
13.
2
5
-14.
2
5
-19.
1
2
-18.
1
3
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-67-
E K M A
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
038 COLO SPRINGS 1978
036 DENVER 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
.09
. 16
. 13
. 18
9
9
9
9
.50
.50
.50
.50
.08
. 13
. 12
. 15
0
1
O
3
-15.
2
4
.08
. 13
. 12
. 15
0
1
0
3
-16.
2
4
.07
. 12
. 1.1
. 14
0
0
O
2
-22.
1
2
.07
. 12
. 11
. 14
0
O
0
2
-22.
1
2
E K M A
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .169.50 .13 1 .13 1 .12 O .12 0
1978 .09 9.50 .08 0 .08 0 .07 O .07 0
1978 .13 9.50 .12 0 .12 O .11 0 .11 O
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
14.
2
5
-15.
2
4
-2O.
1
2
. 14
-20.
1
2
E K M A
STRATEGY: SCEN #3 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
O36 DENVER
O38 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .13 1
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .13 9.SO .12 0 .12 O .11 O .11 0
220 SALT LAKE CITY 1978 .18 9.5O .15 4 .15 4 .14 3 .15 3
AVERAGE PERCENT CHANGE -13. -14. -19. -18.
NO. OF REGIONS ABOVE STD 2212
TOTAL NO. OF EXCEEDANCES 5534
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-68-
E K M A
STRATEGY: SCEN #4 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.SO .13 1 .13 1 .12 O .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 O
1978 .139.50 .12 0 .12 0 .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
15.
2
4
-16.
2
4
-22.
1
2
. 14
-22.
1
2
E K M A
STRATEGY: SCEN /C4 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PR'OdECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 O .12 0
1978 .09 9.50 .08 0 .08 O .07 0 .07 O
1978 .13 9.50 .12 0 .12 0 .11 O .11 0
220 SALT LAKE CITY 1978 .18 9.SO
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
14.
2
5
-15.
2
4
-20.
1
2
14
-2O.
E K M A
STRATEGY: SCEN If A GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 O .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .13 9.50 .12 0 .12 0 .11 0 .11 0
22O SALT LAKE CITY 1978 .18 9.50 .15 4 .15 4 .14 3 .15 3
AVERAGE PERCENT CHANGE -13. -14. -19. -18.
NO. OF REGIONS ABOVE STD 2211
TOTAL NO. OF EXCEEDANCES 5533
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE
-------
-69-
E K M A
STRATEGY: SCEN *5 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
036 DENVER
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .13 9.50 .12 0 .12 0 .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
15.
2
4
-17.
2
4
-23.
1
2
. 14
-23.
1
2
E K M A
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .08 0 .08 0 .07 O .07 0
036 DENVER 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
. 13
. 18
9
9
9
.50
.50
.SO
. 13
. 12
. 15
1
0
4
-14.
2
5
. 13
. 12
. 15
1
0
3
-15.
2
4
. 12
. 1 1
. 14
0
0
2
-21 .
1
2
. 12
. 1 1
. 14
O
0
2
-21 .
1
2
E K M A
STRATEGY: SCEN #5 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
O38 COLO SPRINGS
152 ALBUQUERQUE
220 SALT LAKE CITY
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 O
1978 .09 9.5O .08 0 .08 O .07 O .07 O
1978 .13 9.50 .12 0 .12 0 .11 0 .11 0
1978 .18 9.50 .15 4 .15 4 .14 2 .15 3
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
-13.
2
5
-14.
2
5
-19.
1
2
-19.
1
3
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-70-
E K M A
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .08 O .08 0 .07 O .07 O
036 DENVER 1978
152 ALBUQUERQUE 1978
22O SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
. 13
. 18
9
9
9
.50
.50
.50
. 13
.12
. 15
1
0
3
-15.
2
4
. 13
. 12
. 15
1
0
3
-16.
2
4
. 12
. 11
. 14
0
0
2
-22.
1
2
. 12
. 1 1
. 14
0
0
2
-22.
1
2
E K M A
STRATEGY: SCEN #6 GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
036 DENVER 1978
038 COLO SPRINGS 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 16
.09
. 13
. 18
9
9
9
9
.50
.50
,50
SO
. 13
.08
. 12
. 15
1
0
0
4
-14.
2
5
. 13
.08
. 12
. 15
1
0
0
3
-15.
2
4
. 12
.07
. 1 1
. 14
0
0
0
2
-20.
1
2
. 12
.07
. 1 1
. 14
0
0
0
2
-20.
1
2
IE K M A
STRATEGY: SCEN 06 GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
199O
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
22O SALT LAKE CITY
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .13 1
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .13 9.SO .12 O .12 0 .11 O .11 0
1978 .18 9.SO .15 4 .15 4 .14 3 .15 3
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
13.
2
5
-14.
2
5
-19.
1
3
-18.
2
4
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS, COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
-------
-71-
E K M A
STRATEGY: SCEN #7 GROWTH RATE SCENARIO: LO
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 0 .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .139.50 .12 0 .12 0 .11 O .11 0
22O SALT LAKE CITY 1978 .18 9.5O
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
. 15
. 15
. 14
-15.
2
4
-16.
2
4
-22.
1
2
. 14
-22.
1
2
E K M A
STRATEGY: SCEN H^ GROWTH RATE SCENARIO: MD
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
038 COLO SPRINGS
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .09 9.50 .08 O .08 0 .07 0 .07 0
.13 1 .12 0 .12 0
. 12
. 15
036 DENVER 1978
152 ALBUQUERQUE 1978
220 SALT LAKE CITY 1978
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STO
TOTAL NO. OF EXCEEDANCES
.16 9.50
.13 9.50
. 18 9.50
. 13
. 12
. 15
1
0
4
-14.
2
5
0
3
-15.
2
4
.11 0
. 14 2
-20.
1
2
.11 0
. 14 2
-20.
1
2
E K M A
STRATEGY: SCEN HI GROWTH RATE SCENARIO: HI
03 AIR QUALITY CONCENTRATION ( PPM) AND VIOLATIONS
(STANDARD IS .12 PPM)
PROJECTED
BASE
1984
1985
1990
1995
REGION
036 DENVER
038 COLO SPRINGS
152 ALBUQUERQUE
YEAR CONC RATIO CONC NUMB CONC NUMB CONC NUMB CONC NUMB
1978 .16 9.50 .13 1 .13 1 .12 O .12 0
1978 .09 9.50 .08 0 .08 0 .07 0 .07 0
1978 .13 9.50 .12 O .12 0 .11 0 .11 0
220 SALT LAKE CITY 1978 .18 9.50
AVERAGE PERCENT CHANGE
NO. OF REGIONS ABOVE STD
TOTAL NO. OF EXCEEDANCES
15
. 15
. 14
. 15
13.
2
5
-14.
2
5
-19.
1
3
-18.
1
3
*** NOTE: AIR QUALITY CONCENTRATIONS ARE ROUNDED FOR DISPLAY FOLLOWING EPA GUIDELINES.
THUS. COMPARISONS WITH STANDARDS AND PERCENT CHANGES ARE BASED ON ONE ADDITIONAL SIGNIFICANT FIGURE.
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